protocols of data link layer of osi model pdf
Tài liệu Module 7- Data Link Layer CCNA Exploration 4.0 pptx
Ngày tải lên :
22/12/2013, 13:17
... Data Link Layer Protocols- The Frame
31
• Remember that although there are many different Data Link layer protocols that describe
Data Link layer frames, each frame ... www.bkacad.com
Overview
Upon completion of this chapter, you will be able to:
• Explain the role of Data Link layer protocols in data transmission.
• Describe how the Data Link layer prepares data for transmission ... consists of virtual connections between the
nodes of a network independent of their physical layout.
– These logical signal paths are defined by Data Link layer
protocols.
• The Data Link layer...
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Tài liệu ADC KRONE - White Paper - Data Center - 3 principles of Data Center Infrastructure Design (with n pdf
Ngày tải lên :
16/01/2014, 21:20
... manageability.
WHITE PAPER
The Three Principles
of Data Center
Infrastructure Design
The Three Principles of Data Center Infrastructure Design
Page 5
Choosing the Right Mix
of Equipment
Since the total spend ... fraction of the entire data center
cost, decisions for the so-called physical layer are often
taken lightly. But the fact remains that 70% of all
network downtime is attributed to the physical layer, ... percentage of terminations as copper,
fiber optic cabling and connectivity is a significant part
of the data center. Fiber links are also the most critical
links because they carry data to and...
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Tài liệu The OSI Model: Understanding the Seven Layers of Computer Networks ppt
Ngày tải lên :
24/01/2014, 09:20
... developed standards for this layer.
Note: The Physical Layer of the OSI model is only part of a LAN (Local Area Network).
Layer 2 – The Data Link Layer
Layer 2 of the OSI model provides the following ... 9
T
he TCP/IP model uses four layers to perform the functions of the seven -layer OSI model.
The network access layer is functionally equal to a combination of OSI physical and data link layers (1 ... differently layered arrangement.
An Overview of the OSI Model
Paul Simoneau, Global Knowledge Course Director, Network+, CCNA, CTP
The OSI Model: Understanding the
Seven Layers of Computer Networks
Copyright...
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Hình ảnh Protocols in relation to the OSI model.doc
Ngày tải lên :
24/08/2012, 21:11
... Session
Network
Data link
Physical
zone 1
zone 2
H2:H.323 Protocols in relation to the OSI model
G.711
G.722
G.728
G.729
G.723.1.1
Presentation
H.261 ... typical H.323 Terminal
Video I/O
Equipment
Audio I/O
Equipment
User Data
Applications
System
Control
User
Interface
H.225.0
Layer
Locall
Area
Network
Intererface
recovery
Path
Delay
Video
codec
H261, ... WAN
Admission Control Via Zone BandWidth in the Cisco IOS MCM Gatepeer
May I call 2111 with a
bandwidth of 384K?
1. Setup
2. Alerting
3. Connect
4. TermCapSet
5. TermCapAck
6. mSDet
7. mSDetAck
...
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MOB TME - Other aspects of wireless The layer transport - Bluetooth - Wifi Security
Ngày tải lên :
17/09/2012, 09:13
... of TCP be affected in by the use of wifi connections?
3. What does the use of the mechanism of fast retransmit improve the performances of
TCP in wireless environments in?
4. Another series of ... information such as
the type of packet and the address of the recipient. The body contains the data to transmit. The
radio layer uses the dispersion of spectrum by jumping of FHSS frequency (Frequency
... a
packet of duration of a time interval each one.
b) Represent then the sequence of frequencies used on the successive time
intervals when the master station has a packet of a duration of three...
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Radio Link Performance of Third Generation (3G) Technologies For Wireless Networks
Ngày tải lên :
26/04/2013, 11:15
...
3.2 Link Quality Control
GPRS introduces the concept of Link Quality Control (LQC) to the packet-switched
overlay. Link quality control adapts the protection of the data to the quality of ... for data services, but offers the possibility of
handing over to a regular 1X carrier in the case of simultaneous voice and data
connections. The separate carrier offers the advantage of delivering ... with standard deviation of 7 dB. Single - slot mobile stations. Single
Packet Data Channel (SPDC) dedicated to data traffic. Traffic model: Poisson distribution of packet
of packet inter-arrival...
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Bullding tables of data
Ngày tải lên :
03/10/2013, 00:20
... unnamedTable = new System .Data. DataTable();
System .Data. DataTable namedTable = new System .Data. DataTable("Customer");
Visual Basic
Dim unnamedTable As New System .Data. DataTable()
Dim namedTable ... the process of crafting tables that ensure data integrity and take
advantage of the processing power of relational database systems. E.F. Codd, inventor
of the relational database model, proposed ... tabular data as a collection of collections. Each
DataTable object contains a collection of ordered rows, each existing as an instance of a
DataRow object. Each row contains its own collection of...
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Statistical Description of Data part 1
Ngày tải lên :
20/10/2013, 17:15
... measures of central tendency, the moments of
a distribution, the median and mode. In §14.2 we learn to test whether different data
sets are drawn from distributions with different values of these ... of integer powers
of the values.
Best known is the mean of the values x
1
, ,x
N
,
x=
1
N
N
j=1
x
j
(14.1.1)
which estimates the value around which central clustering occurs. Note the use of
an ... 610
Chapter 14. Statistical Description of Data
Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0-521-43108-5)
Copyright (C) 1988-1992...
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Statistical Description of Data part 2
Ngày tải lên :
24/10/2013, 15:15
... with positive kurtosis is termed leptokurtic; the outline
of the Matterhorn is an example. A distribution with negative kurtosis is termed
platykurtic; the outline of a loaf of bread is an example. ... (outside North America).
The standard deviation of (14.1.6) as an estimator of the kurtosis of an
underlying normal distribution is
96/N. However, the kurtosis depends on such
a high moment that there ... the mean is not the only available estimator of this
614
Chapter 14. Statistical Description of Data
Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0-521-43108-5)
Copyright...
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Statistical Description of Data part 3
Ngày tải lên :
24/10/2013, 15:15
... makes use of the following routine for computing the mean and variance
of a set of numbers,
620
Chapter 14. Statistical Description of Data
Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC ... can be given lists of individual burnout times or of stellar positions. The
data sets on chicken pox and educational level are binned, since we are given
tables of numbers of events in discrete ... 1 degrees of freedom.
The routine is
#include <math.h>
void tptest(float data1 [], float data2 [], unsigned long n, float *t,
float *prob)
Given the paired arrays
data1 [1 n]
and
data2 [1 n]
,...
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